S SAMARESH GOSWAMY New Member May 26, 2008 #1 [B hello, I NEED CIRCUIT TO AUTOMATICALLY FIND OUT WHETHER ANYBODY IS PHYSICALLY PRESENT INSIDE A ROOM OR NOT.
[B hello, I NEED CIRCUIT TO AUTOMATICALLY FIND OUT WHETHER ANYBODY IS PHYSICALLY PRESENT INSIDE A ROOM OR NOT.
Gayan Soyza Active Member May 26, 2008 #2 PIR sensor circuit would be fine.Hope you don't need to sense the body temperature? Last edited: May 26, 2008
ericgibbs Well-Known Member Most Helpful Member May 26, 2008 #3 Hi Gayan, Problems with PIR's is that they only detect 'body' motion, ideal for checking entry/exit from a room, but if the person is still [motionless] the PIR will not detect him. Regards OP, is it required to check entry into room.? Last edited: May 26, 2008
Hi Gayan, Problems with PIR's is that they only detect 'body' motion, ideal for checking entry/exit from a room, but if the person is still [motionless] the PIR will not detect him. Regards OP, is it required to check entry into room.?
Gayan Soyza Active Member May 26, 2008 #4 ericgibbs said: but if the person is still [motionless] the PIR will not detect him. Click to expand... Of course if the person is in a good sleep it wont detect. Ahhhhh I remember that I did a similar thing into my room light.If anyone Presence it will switch on the light.But this a little bit advanced. The OP needs some kind of people counter. Attachments RoomLight.JPG 35.8 KB · Views: 331 Last edited: May 26, 2008
ericgibbs said: but if the person is still [motionless] the PIR will not detect him. Click to expand... Of course if the person is in a good sleep it wont detect. Ahhhhh I remember that I did a similar thing into my room light.If anyone Presence it will switch on the light.But this a little bit advanced. The OP needs some kind of people counter.